The word somatotropins is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 20
Highest Scoring Words With Friends™ Plays In The Letters somatotropins
:
Seven Letter Word Alert: (74 words)
armpits, artists, imparts, impasto, imports, instars, intorts, maroons, martins, matrons, missort, monitor, moorpan, motions, notator, notists, options, oration, ottoman, parsons, passion, pastors, patriot, patrons, pistons, poisons, poromas, porosis, portion, postman, potions, primost, prisons, prosoma, protist, protons, ransoms, rapists, rations, rattons, rattoon, risotto, rototom, somonis, soprano, sponsor, sporont, sprains, sprints, statins, station, statism, strains, straint, straits, stroams, tampons, taoists, taproom, taproot, tinpots, tipmost, tomatos, topmast, topmost, toprims, torsion, tosspot, transit, triptan, tritoma, tropist, tsarism, tsarist